chrome/browser/resources/sync_internals/sync_search.js

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // require: cr.js
   6
   7 cr.define('chrome.sync', function() {
   8   var currSearchId = 0;
   9
  10   var setQueryString = function(queryControl, query) {
  11     queryControl.value = query;
  12   };
  13
  14   var createDoQueryFunction = function(queryControl, submitControl, query) {
  15     return function() {
  16       setQueryString(queryControl, query);
  17       submitControl.click();
  18     };
  19   };
  20
  21   /**
  22    * Decorates the quick search controls
  23    *
  24    * @param {Array of DOM elements} quickLinkArray The <a> object which
  25    *     will be given a link to a quick filter option.
  26    * @param {!HTMLInputElement} queryControl The <input> object of
  27    *     type=search where the user types in his query.
  28    */
  29   var decorateQuickQueryControls = function(quickLinkArray, submitControl,
  30                                             queryControl) {
  31     for (var index = 0; index < allLinks.length; ++index) {
  32       var quickQuery = allLinks[index].getAttribute('data-query');
  33       var quickQueryFunction = createDoQueryFunction(queryControl,
  34           submitControl, quickQuery);
  35       allLinks[index].addEventListener('click', quickQueryFunction);
  36     }
  37   };
  38
  39   /**
  40    * Runs a search with the given query.
  41    *
  42    * @param {string} query The regex to do the search with.
  43    * @param {function} callback The callback called with the search results;
  44    *     not called if doSearch() is called again while the search is running.
  45    */
  46   var doSearch = function(query, callback) {
  47     var searchId = ++currSearchId;
  48     try {
  49       var regex = new RegExp(query);
  50       chrome.sync.getAllNodes(function(node_map) {
  51         // Put all nodes into one big list that ignores the type.
  52         var nodes = node_map.
  53             map(function(x) { return x.nodes; }).
  54             reduce(function(a, b) { return a.concat(b); });
  55
  56         if (currSearchId != searchId) {
  57           return;
  58         }
  59         callback(nodes.filter(function(elem) {
  60           return regex.test(JSON.stringify(elem, null, 2));
  61         }), null);
  62       });
  63     } catch (err) {
  64       // Sometimes the provided regex is invalid.  This and other errors will
  65       // be caught and handled here.
  66       callback([], err);
  67     }
  68   };
  69
  70   /**
  71    * Decorates the various search controls.
  72    *
  73    * @param {!HTMLInputElement} queryControl The <input> object of
  74    *     type=search where the user types in his query.
  75    * @param {!HTMLButtonElement} submitControl The <button> object
  76    *     where the user can click to do his query.
  77    * @param {!HTMLElement} statusControl The <span> object display the
  78    *     search status.
  79    * @param {!HTMLElement} listControl The <list> object which holds
  80    *     the list of returned results.
  81    * @param {!HTMLPreElement} detailsControl The <pre> object which
  82    *     holds the details of the selected result.
  83    */
  84   function decorateSearchControls(queryControl, submitControl, statusControl,
  85                                   resultsControl, detailsControl) {
  86     var resultsDataModel = new cr.ui.ArrayDataModel([]);
  87
  88     var searchFunction = function() {
  89       var query = queryControl.value;
  90       statusControl.textContent = '';
  91       resultsDataModel.splice(0, resultsDataModel.length);
  92       if (!query) {
  93         return;
  94       }
  95       statusControl.textContent = 'Searching for ' + query + '...';
  96       queryControl.removeAttribute('error');
  97       var timer = chrome.sync.makeTimer();
  98       doSearch(query, function(nodes, error) {
  99         if (error) {
 100           statusControl.textContent = 'Error: ' + error;
 101           queryControl.setAttribute('error', '');
 102         } else {
 103           statusControl.textContent =
 104             'Found ' + nodes.length + ' nodes in ' +
 105             timer.getElapsedSeconds() + 's';
 106           queryControl.removeAttribute('error');
 107
 108           // TODO(akalin): Write a nicer list display.
 109           for (var i = 0; i < nodes.length; ++i) {
 110             nodes[i].toString = function() {
 111               return this.NON_UNIQUE_NAME;
 112             };
 113           }
 114           resultsDataModel.push.apply(resultsDataModel, nodes);
 115           // Workaround for http://crbug.com/83452 .
 116           resultsControl.redraw();
 117         }
 118       });
 119     };
 120
 121     submitControl.addEventListener('click', searchFunction);
 122     // Decorate search box.
 123     queryControl.onsearch = searchFunction;
 124     queryControl.value = '';
 125
 126     // Decorate results list.
 127     cr.ui.List.decorate(resultsControl);
 128     resultsControl.dataModel = resultsDataModel;
 129     resultsControl.selectionModel.addEventListener('change', function(event) {
 130       detailsControl.textContent = '';
 131       var selected = resultsControl.selectedItem;
 132       if (selected) {
 133         detailsControl.textContent = JSON.stringify(selected, null, 2);
 134       }
 135     });
 136   }
 137
 138   return {
 139     decorateSearchControls: decorateSearchControls,
 140     decorateQuickQueryControls: decorateQuickQueryControls
 141   };
 142 });